-2.56% is the change from 936 to 912
Calculation steps:
[( 912 - 936 ) ÷ 936] x 100 = -2.56%
Formula
Percentage change = [(912 - 936) / 936] x 100
Subtract the new number by the original number
912 - 936 = -24
-24 ÷ 936 = -0.02564102564102564
-0.02564102564102564 x 100 = -2.56%